Grinder.



W. B, BARNES.

GRINDER.

APPLICATION FILED JULY 25, 1912.

Patented Mar. 4, 1913.

Inventor Attorneys roaster:

* W LLIA'M chimes, or GREENFIELD, ILIiINOR.

' GRINDER.

-To all whom it may concern:

Be it known that I, VVILLIAM B; BARNES,

:, a citiien of the United States, residing at I-Greenfield, in the county. of Greene and State of Illinois, have invented certain new i and: useful Improvements in Grinders, of

which'the following-is a specification.

" The device forming the subject-matter ofthis application, is .a grinder structure adapted to be applied to the frame of an ensilage cutter, for the purpose of sharpen wing the knives of the ensilage cutter, while.

the cutter is-in operation, it being contemp]ated that,'in practice, .the ensilage cutter shall be provided with two-sets of knives,

one of which may besharpened, while the other set is in use'upon the cutter. a

:The invention 1 aims to provide novel mechanism for actuating and. for supporting a grinding element, and to provide novel means for connecting the grinder operatively with one'of the rotatory shafts of the ensila-ge cutter. T

With the foregoing and other objects in view, which will appear as the description proceeds, the invent-ion resides in the combination and-arrangement of parts and in the details of construction"hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of whatis claimed without departing from the" spirit of the invention.

In the drawings,Figure 1 shows the invention in top plan; and Fig. 2 is a transverse section. In the accompanying drawings, the numerals l and 2 indicate portions of the. frame of an ensilage cutter, the members 1 being parallel, and the member ,2 being disposed at right angles to the members 1, the parts 1 and 2 being connected. Supported by the members 1 of the frame of the ensilage cutter are bearings 3 in which is journaled for rotation a shaft 4, provided at one end with a shrouded gear wheel 5 or with other suitable'means whereby the shaft :l may be operatively connected with the knives of the ensilage cutter. At its other extremity, the shaft 4: is equipped with a beveled pinion 6 meshing into a beveled pinion carried by a shaft 8. The shaft 8 is a power-driven shaft, and constitutes means for operating the grinding mechanism, and for operating the knives of the ensilage cuttel. Secured to the shaft 8, and, if desired Specification of Letters Patent.

Patented Ma a, 1913.

, Application filed July 25, 1912. Serial No. 711,524.

forming a part of the beveled pinion 7, is a collar 9 having a flange 10 which abuts against one side of a bearing 11 inwhich the shaft 8 is journaled for rotation, the bearingdl being-supported by the frame member 2. Secured to the extremity 6f the shaft Sisa collar 10, the collars l0 =and 10 constituting means for preventing the shaft 8 from having longitudinal movement in the bearing. 11. Secured to the member of the frame are supporting blocks 12 "and 14, provided with bearings 15, in which is journaled for rotation, a shaft 16,'to which issecureda pulley 17. 'Another pulley 18 is secured to-the shaft 4, and" about the pul- 1eys-17 and .18 is passed a belt 19. A lever 20 extends transversely of the shafts 16 and 4, the lever 20 being fulcrumed upon a rod 21, extended through the supporting blocks 14" and 12, there being nuts. '21

threaded upon the rod. 21-, the nuts 21" en s ing OppQsiteF -SideS of the blocks 12 and 14;.

At one end, the lever 2Qf-is bifurcated as indicated at 20, the bifurcations 20 supporting for rotation, a wheel 20 which bears against the lower run of the belt 1'9, 50 that the parts 20 and 20 constitute a belt tightener. The upper end of a retractile spring 22 is secured as sho-wnat 23,. to the free end of the lever 20, the lower end of the spring 22 being secured as shown at 24c, to any suitableportion 25 of the frame of the ensilagecutter. Secured to one end of the shaft 16 is a collar 26 which prevents the shaft 16 from moving longitudinally in one direction in the bearings 15. Longitudinal movement of the shaft 16 an opposite di-' rection, is prevented by means of a collar 27 which, as indicated at 2-9, is secured to the shaft 16, the collar 27 being, if desired, formed integrally with a clamp member 28 which coiiperates with another clamp member 30, held upon the shaft 16 by means of a nut 31 threaded upon the extremity of the shaft. -Between the clamp members 28 andv 30 is held a grinding whgel 32.

In practical operation, motion is transmitted from the drive shaft 8 through the intermeshing beveled pinions 6 and T to the shaft 4, the shrouded gear Wheel 5 constituting ,a means for transmitting rotatory movement from' the shaft 4 to the knife mechanism (not shown) of the ensilage cutter. When the shaft at is rotated, rotatory movement will be transmitted through the pulley 18,- and from the pulley 18 by means of the belt 1%.), to the pulley 17 and to the shaft 16, the grinding wheel 32 being rotated. It will thus be seen that while the ensilage cutter is in operation, a separate set of knives may be sharpened upon the Wheel 32, it being unnecessary to provide separate driving mechanism for actuating I 21, and the Wheel.20 being thrust againstthe lower run of the belt 19', whereby the belt will be held sufliciently taut to connect the shaft 4 operatively with the shaft 16.

. The rod-21 exercises a double function. In

the first instance, it constitutes a fulcrum for the lever 20 of the belt tightener, and in the second instance, cooperating with the nuts 21', it constitutes a means for spacing the blocks 12 and let so thatthe bearings 15 will cooperate properly With't-he collars '26 and 27 which are upon the shaft 16.

The grinding mechanism, it is to be noted, is so mounted in place upon the frame of the ensilage cutter that there will be practically no vibration in the grinding mechanism, when the same is in operation. The grinder, further, is not in the way of the cutting mechanism of the ensilage machine,

Having thus described the invention, what is I claimed is In a device of the supporting members; bearings secured to the supporting members; a shaft journaled in the bearings; collars upon the shaft, adapted to engage the ends of the bearings to prevent the shaft from moving longitudinally in the bearings; a rod connectnig the supports; means upon the rod engaging the supports to prevent the supports andthe bearings from moving longitudinally of the shaft and to'prevent the bearings frombinding against the collars; a grinding wheel carried by the shaft; a second shaft; means for supporting the seond shaft for rotation; a belt passed aboutv the' shafts; and a belt tightener fulcrumedupon the rodand engaging the belt.

In testimony whereof I afiix my signature in presence of two witnesses. WILLIAM B. BARNES.

Witnesses:

Amos C. RYAN, CHARLES H.

l class descrlbed, spaced 35 and in no way interferes with the cutting of the ensilage. l 

